Photocatalytic degradation of methyl orange dye by ZnO nanoneedle under UV irradiation

  • Nirmalya Tripathy
  • , Rafiq Ahmad
  • , Jeong Eun Song
  • , Hyun Ah Ko
  • , Yoon Bong Hahn
  • , Gilson Khang*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

The ZnO nanoneedles (ZNNs) were grown in large quantity by thermal evaporation technique on non-catalytic Si (100) substrates and used as an effective photocatalyst for photocatalytic degradation of methyl orange dye (MO). The detailed characteristics of ZNNs confirmed that the synthesized nanostructures are grown in high density and exhibit well-crystallinity with good optical properties. The photocatalytic properties of ZNNs were investigated under UV light irradiation. A fast decomposition of the MO dye was observed with a degradation rate of ~95.4% within 140 min.

Original languageEnglish
Pages (from-to)171-174
Number of pages4
JournalMaterials Letters
Volume136
DOIs
StatePublished - 2014.12.1

Keywords

  • Methyl orange dye
  • Photocatalytic degradation
  • Thermal evaporation
  • ZnO nanoneedle

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Mechanical
  • Materials Science
  • Physics & Astronomy

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